Many of the Pentagon's most advanced weapon systems -- including the F-35 Joint Strike Fighter and PAC-3 Patriot missile system -- were compromised by Chinese hackers, according to a classified document obtained by the Washington Post. The list of weapons was part of an earlier DoD report condemning Chinese cyber-espionage activities, but had been confidential until now. Other systems hacked are said to include the Terminal High Altitude Area Defense (THAAD), the Navy's Aegis ballistic-missile defense system, the F/A-18 fighter, V-22 Osprey and the Littoral Combat Ship used for shore patrol. Many of these form the foundation of defense systems from Europe to the Persian Gulf -- and their breach goes a long way toward explaining Washington's unprecedented dressing-down of China.